1. Senior Department of Orthopaedics The Fourth Medical Center of PLA General Hospital Beijing China
2. National Clinical Research Center for Orthopaedics Sports Medicine & Rehabilitation Beijing China
3. School of Medicine Nankai University Tianjin China
4. Department of Orthopaedic Surgery PLA Strategic Support Force Characteristic Medical Center Beijing China
5. Sports Medicine and Shoulder Service Hospital for Special Surgery New York USA
6. Orthopaedic Soft Tissue Research Program Hospital for Special Surgery New York USA